Bolt-thread-rolling mechanism.



G. A. J. HAINSWORTH. BOLT THREAD ROLLING MECHANISM. APPLICATION FILED JULY 5,1911,

s SHEETS-SHEET 1.

- Patented Mar. 11, 1913.

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G, A. J, HAINSWORTH. BOLT THREAD ROLLINGWIECHANISM. APPLIGATON FILED JULY 5.1911V G. A. LEAINSWORTH, BOLT THREAD ROLLING MEGHANISM.

APPLICATION' FILED JULY 5,1911. 4 I

Patented Mar. 11,1913t UNITED STATES PATENT OFFICE.

esoneri A. J.- HAINsWoR'Ir-H, or NEWARK', omo.

Bohr-THREAn-Rotnme MECHANISM.

Specication of Letters-Patent.' Patented lwal. 11, 1913.

origami maintien mea remary 2, 1911, seriai No. 611,36*?. Divided ana-this application mea July 5, 1911. serial No. cadeva'.

Tb t panama."-

Bj'it known that l, GEORG'A. J. Hangsvvonffa; e citizen of the United State' s,res1d ing at Newark, in the' county of Licking and s. State if` Ohio, have invented ertam new faite usefui tmpre'vemenein Boa-Thread.

Hennig Mehjanism, af which the following' is a speciticatinreference being had to the accom an. in` r'aWi4 f 'hispiniyihion rela es to bolt thread roll- Y ing mechanismofthat character embodymg 'statiha'gy and inoijf'a'ble threading diesas disclosed iii my prior patent, Number 1018,7 06, issued February-27, 1912, of which I th"r 'applicationis adivision;

llille primary object of the present inven- "tin resides the provision o a thread rollfii'g ...mechanism including stationary' and fovhlejdies, and means for automatically deding the bolts to the dies .successively 1n 'thefiiiovementsof the movable die in the same direction. t l

' fnother object of the invention 1s to prolvide improved means for mounting the dies, [iind means for adjusting the stationary die I and rigidlyvsecuring the same in its adjusted 'positions I a A further object of the lnvent-ion is to provide a thread rolling mechamsm ar- 3:9 ran ed as an accessory to the bolt forming 'imac ine, said mechanism including a stationary die and a reciprocable die, means conlnecting the reciprocable die'to the bolt f orming mechanism whereby said die 1s ,reciprocated, means for automatically feeding the bolts as they leave the forming machine to a carrying element, saidmeans beingI actuated in the movement ofthe reciprocable die in one direct-ion, and additional means automatically actuated in themovement of the reciprocable die in the opposite direction to ,i

-present. invention more particularl resides actuate said carrying element 'and position the bolts between the threading dies.

With the above and other objects in View,v

5 the invention consists of the novel features of constructionfcombination and arrangement of parts hereinafter fully described and claimed, and illustrated in the accompa- 5U' Figure l is aside elevation of a thread rollin mechanism showing the same arrange' for operation in conjunction with a bolt fcraing'machine'; Fig. 2 is a top lan view 'showing the Npositions of the par at the start of the threading movement of the i'eciprocable die; Fig. 3 is a similar ,View showing the positions of the arts during the reverse movement of the reclprocable die and the lrotative movementbf the bolt carrying table; Fig. 4 is a section takenon the 60 line 4-.4 of Fig. 2; Fig. 5y is a bottom plan view of the table; Fig. 6 is a detail perspec tive view of the reciprocatory :die and parte associated therewith; Fig. 7 is a detail side velevation of the stationary threading die and the bolt receiving post. Fig. 8 is a detail section taken on the line 8-8 of Fig. 1. y

The present invention rhas' for its primary object the provision of simple and eiicient means whereby the bolts are automatically fed asthey leave the forming machine, to the vthreading dies, the feeding and threading mechanism being cooperatively 'associated for synchronous operation, the bolts` being' automatically handled from the time 75 they leave the forming machine until discharged from thc thread rolling mechanism.

In Fig. 1 of the drawings: I have illus` trated a bolt forming machine-which may be of any approved construction. As this machine constitutes no part of the presentini'ention it Will not be described in detail. It will sullce to state that the connection oi' my improved thread rollingA mechanism with the forming machine whereby said mechanism is actuated is effected by means of av connecting rod or pitman 5 which isconnected at one end to aneccentric E arranged upon the fly Wheel shaft S 'which. is suitablyl mounted -upon the supporting frame F of the forming machine. `This connecting rod v5 is pivotally connected at its other end .to.an arm 6 Which -ismounted upon a suitable stud bearing arrangedin the. end of the frame F. y y

lhe thread rolling mechanism in which the includes a frame 7 fwhich consists o the two parallel longitudinal angle bars 8, mounted upon the u per ehds of similar angular standards 9. Ille vertical -langes ofthe parallel Ways' or guidebars 8 are arranged at their l outer edges, the inner edges of said yangle. bars beinglslightly spaced as shown in Fig. 2. Upon one of the angular ways or ides a relatively stationary adjustable die `l() is arranged. This die isin theform of a block having inclined ends against which the angle brackets Illengagfasald brackets Ibeing rig- 1dly fixed by'means of the screws 12 tol the no' rertieal tiange ot the angle bar S which forms the guide; Adjust-ing screws 1? are also threaded;through the vvertical liange o the guide and bear vagainst the die it) to torce the .same inwardly toward the lone'i tudinal spaee between the inner edges of the guide bars. The transversely disposed tlang'es ol the angle brackets ll limit the inward movement' of the die block 1O and in these brackets the bindingserews 13 are varranged `to rigidlyY hold said die in its adjusted position. The die block l0 rest` upon the horizontal tlange of the guide bar S. and in the operation of the mechanism. the inner face ot' .said block which is provided with theeutting' threads l-lr extends slightly beyond the inner edge ot' said. guide bar lor a purpose whieh will be obvious from the following,t deseription. i

)i movable die '15 arrangedv upon the other ot the angular guides or ways S. This die is also provided with a threaded'faee iti similar to the threaded tare ll of the die l0 to whieh it opposed. rl`he mo 'able die' l5 is secured in the end of the reeiproeatory bar l?, the end ot said bar beingl disposed at an angle against which one end ot' the die abuts. plate 1S is secured to one side ot' the bar 1T and engages the other end of said die.l serew 11i threaded through the angular end ot the reeiprocatory bar 1T a-nd engages the die, block to rigidly tix the same in position. The inner edge. portion of the movible die l5 extends beyond thev ltmgitudinal inner edge of the angular guide or way 8 and iu the threadingr ot the bolt shanks the bolts are adapted tto be eaught and moved between the. opposed threaded Fares ot the dies l0 and l5, and at the end otl the elleetive movement ot the movable die l5. when the bolt shanks will have been moved across the entire opposed faces of the dies, the bolt is deposited through the reeesses ZO tormed in the inner opposed edges ot the angle bars Sinto a suitable receptacle arranged beneath the same.

'lhe reciproeatory Vbar 17 iscouneeted to the oscillatory arm G by means ot' the links 21, which at one of their ends are pivoted.

-to the end of: the bar 17. The' other ends ot the `liuks'Ql are provided with short longitudinallslots QQ to permit of the movement of the links upon the vpins 23 which project from opposite sides of the arm 6. A roller 21 is mounted inthe end of thebar Wand bears against the edge of the oscillatory arm. coiled spring also eonneets said arm and the bar Wand acts to hold the roller 24 yieldngly in Iengagententwith said arm, whereby. in the oseillaha'y movement ott the arm said roller ina'v freeiy rotate longitudinally thereon as the siotted ends of the connectingt links move upon the pins 23. By providingr 4sueh eonneetions` the movable die. iloek hasI free -liditrer autrement, upon the trame and the eonneetingt bar 1T is relieved ol.E undue strain which would be caused by the direet pivotal eonue'etion of said bar t0 the arm t3t owing to the oscillatory movement of the latter. f

The die l5 and the bar 1T to which it is seeured are held upon the angular guide or wa)v S against vertical movement by means ot' a longitudinal bar 26, which at its ends is lseeured to the angular bar 3, the ends of 'said bar beinel slightl)v ottset to dispose the ii'ith the above end in view. a'vertieal' pivot rod '2T 1s mounted in a suitable bear-v ing 2S tixed to the side ot the angular guide or wa v h upon whieh the .stationary die bloek lttis Iseem-ed. Upon the upper end ot' this pivot rod or shaft QT, the circular'g feeding wheel or table 29 is mounted. plurality ot arms il() are radially arranged upon the upper surtaee of the table `and rigidlyv tixed thereto by means of the .screws Si whieh extend entirely through the Ybody ot' the table and are th aded into the ra diall)Y disposed plates 3Q arranged on the under side thereof. The outer ends of the arms BO project beyond the periphery ot` the table and are provided with the transversely extendingr recesses 32E which are o'ta depth equal to more than one-half of the width of the arms. Fliese recesses are adapted to reeeive the shanks ot the belts which are deposited into a hopper ill arranged beneath the dist-barge tube it" of the bolt forming maehine. 'lhe part'ieular eonstruetion of -tliis hoppe and the manner iu which the bolt Shanks are singrlv delivered to the arms arrangedupon the rotatable t'eed table will be later described in detail.

The means t'or intermittently rotating the teedtable to sueeessiveiy feed tho bolts earried thereby to the threadingt dies eonsists of a longitudinally slidable spring' retracted bar 44 Whieh vis mounted tor movemeutiu a U-shaped guide braeket i5 tixed to onev ot' the angular supportingr .standards 9 u'pou whieh the `guidesl or ways S are arranged: .\u arm 4G is also rigidly secured at one end to Isaid .standard and one end ot' a retraetile springt t7 is .seeured to the other end ot said t arm. said `'pi-ing; being eonueeted to a pin i3 fixed iii-the lidable bar ll l. The bar -ll is :uitomatieally aetuated in the return or non-effective reciprocating stroke of the die bar 17, through the medium of an arm 50 which is pivotally mounted intermediate of its ends upon the outer end of a support 51 which is also secured to the frame standard 9. One end lof this'arm is disposed in an elongated slot 52 in the end of the slidable bar 44, said arm or llever 50 being moved upon its pivot by means of' a dog 53 which pivotally mounted upon one side of the reclprocatory bar 17, as indicated at 54. This =dog is normally held in an elevated position so that its free end is disposed above the plane of the upper -longitudinal edge of the bar 17. The dog is yieldingly held in such position for engagement with one end of' the arm 50 in the return stroke of said bar by means of a coiled spring 55 which is disposed upon a pin 56, the upper end of which extends into a recess or socket 56- in .the dog.' lThe lower end of the pin 56 is fixed in the plate 18, the u per edge of which is recessedlas indicate at 57 to receive ,the dog 53T"As will be clearly seen from reference to Fig. 3 of the drawings, upon the returnA stroke of the bar 17 after al b'olt shankA has 'been threaded and discharged; from between the dies, the free end of the 'dog 53 is brought into engagementl with the pivotally mounted arm to oscil- .late the same on its pivot and move the bar rctractile spring the 'ba :l1-t longitudinally a ainst the tension of the 4% In this 'movement of r 44:, -the same engages one of the plates 32 on the under side of the rotary feed table 29 and moves said table to an extent equal to the distance between adjacent arms 3() in the direction of the arrow, asindicated in said figure. In this movement ofthe table, onel of the bolts carried thereby is disposed between the opposed threadlng surfaces of the die blocks 10 and 15, the latter die rotating the bolt shank in its forward longitudinal movement so as to cut the threads u on the periphery thereof.

In order to e ect an automaticiremoval' of the bolts from the arms 30 and to properly dispose the bolts betweenthe opposed surfaces of the die blocks in the effective movement of the reciprocable die, I provide `the horizontally disposed arm 59 which is formed upon the upper end of a vertical bar 58 fixed at its lower end to the outer vertical flange of theangle bar 8. This arm extends inwardly over the stationary die block 10 and the extremity thereof is disposed immediately above the plane of movement of the endsl of the radial arms 30, and provided with a curved notch or recess 59 for engagement with the head of the bolt B whereby 'the .same is forced out of the recess 43 in the end1 lof the arm as the table 29 is rotated.l The bolt is momentarily supported between fthe dies by means of a vertical ppst 60 whichl is provided a concave face 6l to receive the bolt shank, the head of the bolt engaging the upperend of the post. This concave face of t-he post is disposed in the direction of movement of the reciprocating die, so that the bolt is engaged by said die and moved out of the recess in the face of the post in the forward movement of the" die block. When the bolt is positioned in the post 60, the shank of the bolt is disposed in the path of the threaded face of the movable die 15 and in the forward movement of said die the engagement, of the bolt shank 4by the end 4of the die block moves the same out; of the concave face of the post and against the threaded face of the opposed stationary die block as shown in Fig. 2. The bolt shank is thus rotated between the opposed faces of the stationary and movable blocks and in the 'forward movement of the movable die is provided with threads upon vits periphery. The movement of the bolt between the opposed faces of the die blocks is effected 'by the provision of the inclined face on the post 60 which maintains the shank of the bolt at a forward .inclination and in the direction of movement of the movable die so that When said die engages the shank the same will immediately move away from the post and between the faces of the die blocks. At the end of such for ward movement of the die 15, the bolt B is discharged beyond the end of the stationary die 10 through the recesses 2O in the inner opposed edges ofthe angle bars 8 and dex posited in the receptacle arranged beneath said bars. t In addition to the above mentioned features of the machine, I also make provision for the automatic feeding of the headed boltv upon the opposite edges of said slot. The

hopper is disposed beneath the discharge spout of the forming machine as previously described and is disposed at an inclination so that the bolts gravitate downwardly and move into the contracted neck portion 63 -which is formed upon the lower end of the hopper. A leaf spring 64 is secured at one end to the wall of the hopperand the other end thereof bears upon the head of the bolt shank which is disposed in the outer end of the neck 63, to retain the bolt in position to be fed to -the arms 30 of the rotatable table 29. The bolts are successively fed into the recesses 33 in the outer ends of said arms f -I by means of a ngerbar .65 which is pivotally mounted upon the end. of an arm .66

al flange of one of the angle bars8. One

Vend of the finger bar (Sris tapered or pointed as indicated at (35', and is adapted to engage between the heads ot' the ontcri ost bolts whichare arranged in the neck of 1e hoppc' and force the outer bolt from said neck against the tension ot' the spring 6l, into the slot 33 of one of the radial arms 30 carried by the table 29. A. spring 67 is connected to the other end ot' the linger bar tand to the supporting arm G6 and normally 'acts to move the bolty engaging end G5 of said bar outwardly away from the bolts. This linger bar G5 automatically engaged and aetuatcd in the rearward movementent theslidable bar ell after the table 2S) has lbelen frotated in'the return movement of the.reciprocatory bai-17. This operation is cl arly shown in Fig. 'Oot' the drawings and occursainnnediately at'ter eachiotative movement of the table.

From the foregoing description, the operation and construction ot my improved tl'n'eading andI slotting mechanism 'will be readily understood.

The operation of the parts is entirely automatic and no manual handling` ofthe bolts is neeessaeetroni the time they leave the forming machine until they are discharged from the threading dies. i

The device may be arranged for operation in connection with a bolt forming machine ot' any Lippi-overl construction, and the rotatable table 2t) may be provided with any desired number of the bolt receiving arms.

Comparativelylew parts are employed in the construction of the mechanisms, and as' rthey are all of simple form, it willv he rea-dily seen that. the machine is not liable to get out of order, and that the same is extremely durable and positive in practical operation The various parts of the mcchanismare also susceptible oit many other moditications in regard'to the form, proportion and ai rangement thereof within the scope of ithe appended claims.

Having thus described the invention what is claimed is l. In a thread rolling mechanism, a stationary die, a reciprocable die, the opposed faces of said dies being' provided with forming threads thereon for engagement with the periphery of a holt, and a vertical post disposed atone end of the stationary die and having an inclined face extending in one direction of movement of the reciprocable die to direct a bolt to be threaded between the opposed thread forming faces of I signature in the presence o'l two I.vitnesscs.I

GEORGE A, J. lf'LeXlNSlVORTl-l.

fitnesses HELEN Rennais,

(l. A. FLEMING. 

